Derry Posted February 23, 2009 Share Posted February 23, 2009 I left town for the weekend and came back to find a green monti cap with a big white patch in the middle of it. The bleached area in the middle is ringed by a light brown area that looks like the coral expelling its zooxanthellae. From this morning to lunch, it does look like the bleached area is expanding. I've got a second green cap and an orange cap in this tank that are both doing just fine. Any ideas what might be causing this? Derry Current params: Salinity 1.026 Ammonia 0 Nitrite 0 Nitrate 0 Phosphate 0 pH 8.3 dKH 13 Ca 320 (I got a bad Ca test kit that was throwing my readings off for a while - need to bring dKH down and Ca up) Link to comment Share on other sites More sharing options...
This topic is now archived and is closed to further replies.